Question

1) If x² - y² = 16 and (x +y) = 8 then (x - y) is



1) 8

2) 3

3) 2

4) 1

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Answer 1

Answer:

3) 2

Step-by-step explanation:

(x + y) = 8

x² - y² = 16

=> (x + y)(x - y) = 16

=> 8 × (x - y) = 16

=> (x - y) = 16/8 = 2

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